What will be the effect of tillage on the thermal

How many students from Institute R got placement?

I. The number of students studying in Institute Q and R are in the ratio of 5:7.

What is the age of Kunal?

Statement I - Four years ago, the age of Kunal was three-fourth his present age.

What is the marked price of the furniture?

The sugar bag's cost price and marked price have a ratio of 4:7. If the bag is sold for Rs.600, calculate the profit %.

How much time does A take alone to complete the work?

I. B alone takes 45 days, while A and B together take 15 days to complete the work.

What is the speed of a train?

I. The train crosses a pole in 24 seconds.

II. The train crosses a platform of equal length in 48 seconds.

What is the speed of stream?

I   Sum of time taken by a boat in upstream and downstream is 46 hrs to cover distance 460 km in each. 

What is the value of number x ?

I. The HCF of x and 16 is 8.

What is the age of a class teacher?

I. There are 13 students in the class.

II. The average age of students and the teacher is 16 years.